CN102193353A - Light fixable toner, two-component developer and method for manufacturing the light fixable toner - Google Patents
Light fixable toner, two-component developer and method for manufacturing the light fixable toner Download PDFInfo
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- CN102193353A CN102193353A CN2011100707767A CN201110070776A CN102193353A CN 102193353 A CN102193353 A CN 102193353A CN 2011100707767 A CN2011100707767 A CN 2011100707767A CN 201110070776 A CN201110070776 A CN 201110070776A CN 102193353 A CN102193353 A CN 102193353A
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- toner
- refraction
- light
- particle
- inner additive
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- IEQIEDJGQAUEQZ-UHFFFAOYSA-N phthalocyanine Chemical compound N1C(N=C2C3=CC=CC=C3C(N=C3C4=CC=CC=C4C(=N4)N3)=N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C4=N1 IEQIEDJGQAUEQZ-UHFFFAOYSA-N 0.000 description 1
- 229940110337 pigment blue 1 Drugs 0.000 description 1
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 description 1
- 229920000767 polyaniline Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920005672 polyolefin resin Polymers 0.000 description 1
- 235000013824 polyphenols Nutrition 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000011164 primary particle Substances 0.000 description 1
- YARNEMCKJLFQHG-UHFFFAOYSA-N prop-1-ene;styrene Chemical compound CC=C.C=CC1=CC=CC=C1 YARNEMCKJLFQHG-UHFFFAOYSA-N 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 1
- 239000001054 red pigment Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229960004889 salicylic acid Drugs 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- FZHAPNGMFPVSLP-UHFFFAOYSA-N silanamine Chemical compound [SiH3]N FZHAPNGMFPVSLP-UHFFFAOYSA-N 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- LXMSZDCAJNLERA-ZHYRCANASA-N spironolactone Chemical compound C([C@@H]1[C@]2(C)CC[C@@H]3[C@@]4(C)CCC(=O)C=C4C[C@H]([C@@H]13)SC(=O)C)C[C@@]21CCC(=O)O1 LXMSZDCAJNLERA-ZHYRCANASA-N 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- AAAQKTZKLRYKHR-UHFFFAOYSA-N triphenylmethane Chemical compound C1=CC=CC=C1C(C=1C=CC=CC=1)C1=CC=CC=C1 AAAQKTZKLRYKHR-UHFFFAOYSA-N 0.000 description 1
- UJMBCXLDXJUMFB-UHFFFAOYSA-K trisodium;5-oxo-1-(4-sulfonatophenyl)-4-[(4-sulfonatophenyl)diazenyl]-4h-pyrazole-3-carboxylate Chemical compound [Na+].[Na+].[Na+].[O-]C(=O)C1=NN(C=2C=CC(=CC=2)S([O-])(=O)=O)C(=O)C1N=NC1=CC=C(S([O-])(=O)=O)C=C1 UJMBCXLDXJUMFB-UHFFFAOYSA-K 0.000 description 1
- YEIGUXGHHKAURB-UHFFFAOYSA-N viridine Natural products O=C1C2=C3CCC(=O)C3=CC=C2C2(C)C(O)C(OC)C(=O)C3=COC1=C23 YEIGUXGHHKAURB-UHFFFAOYSA-N 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 239000010456 wollastonite Substances 0.000 description 1
- 229910052882 wollastonite Inorganic materials 0.000 description 1
- RNWHGQJWIACOKP-UHFFFAOYSA-N zinc;oxygen(2-) Chemical compound [O-2].[Zn+2] RNWHGQJWIACOKP-UHFFFAOYSA-N 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Images
Classifications
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- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G9/00—Developers
- G03G9/08—Developers with toner particles
- G03G9/0827—Developers with toner particles characterised by their shape, e.g. degree of sphericity
-
- G—PHYSICS
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- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
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- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
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- G03G9/0926—Colouring agents for toner particles characterised by physical or chemical properties
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Abstract
The invention provides a light fixable toner which is not containing an infrared absorbent and fixed by light irradiation, and a two-component developer containing the light fixable toner and a method for manufacturing the light fixable toner. The light fixable toner contains a binder resin, a colorant and an internal additive having an average particle size of 0.50 [mu]m or more and 1.40 [mu]m or less, and a shape factor SF-2 is 105 or more and 120 or less, a relative refractive index nb/na which is a ratio of an absolute refractive index nb of the internal additive to an absolute refractive index na of the binder resin is 0.90 or more and 0.97 or less.
Description
Technical field
The present invention relates to the manufacture method of light fusing toner, two-component developing agent and light fusing toner.
Background technology
Xerography is to utilize the photoconduction electrical phenomena to form electrostatic latent image on photosensitive drums, make this latent electrostatic image developing form toner picture (visible image) by toner, then this toner is looked like to be transferred on the recording chart, and with the toner after the transfer printing as the image forming method of photographic fixing on recording chart.In the photographic fixing of toner picture, used the various fixing devices that utilize heat, pressure or light, for example, use the fixing device of warm-up mill the most commonly used.
But the thermal efficiency height of the fixing device of use warm-up mill but then, produces tens of seconds idle time approximately in the initial stage heating (startup) of device.And, use the fixing device of warm-up mill because stained (offset) takes place the toner that remains on the warm-up mill, therefore there is the problem of polluting recording chart easily.And, use the fixing device of warm-up mill owing to, therefore using under the situation of continuous paper as recording chart by pair of rolls clamping recording chart, there is problems such as being easy to generate the fold that causes by crawling, breakage.
Utilize the fixing device of pressure to receive publicity because of having advantages such as not needing warming-up, thermal source.But, utilize the fixing device of pressure be difficult to the toner picture securely photographic fixing on recording chart.And, utilize the fixing device of pressure since make recording chart between pair of rolls by and pressurize, therefore using under the situation of continuous paper as recording chart, have problems such as being easy to generate the fold that causes by crawling, breakage.And, utilize the fixing device of pressure, use the forming label that often uses in recent years with the situation of sticker paper as recording chart under, the problem that exists glue to ooze out from substrate because of pressure.
Relative therewith, utilize the fixing device of energy of the flash of light of xenon lamp etc., because toner optionally absorbs luminous energy, therefore can carry out the photographic fixing of toner picture at a high speed.And, utilize the fixing device of the energy of flash of light, owing to can on recording chart, carry out photographic fixing non-contactly, therefore have following advantage: do not need to worry the stained of above-mentioned toner and the fold that causes by crawling of recording chart, breakage etc.; Even the toner picture during to above-mentioned sticker paper photographic fixing glue can not ooze out yet; The photographic fixing of toner picture is easy.
But, in the photographic fixing that utilizes flash of light, though there is the low problem of fixation performance of color toner in black toner photographic fixing fully.This be because black toner can be in the long scope of all-wave absorbing light, therefore absorb the flash of light (light of intensity peak in 800nm～1000nm scope) that xenon lamp produces, temperature rises fully, but color toner is the light of absorbing wavelength in 800nm～1000nm scope hardly, so temperature is difficult to rise.
As the toner that addresses this problem, put down in writing the color toner that has added infrared absorbent in the Japanese kokai publication hei 11-38667 communique, wherein, above-mentioned infrared absorbent absorbs the light in the near-infrared region (wavelength is in the zone of 800nm～1000nm).But the infrared absorbent that absorbs the light in the near-infrared region also absorbs the interior light of visible region (wavelength is the following zone of 780nm).Therefore, if the efficiency of light absorption of toner is improved and in toner a large amount of infrared absorbents that add, then the uptake of the light in the visible region also increases, the problem that exists the color reprodubility of the toner picture (photographic fixing image) after the photographic fixing to reduce.
In order to address this problem, the image processing system of putting down in writing in the TOHKEMY 2008-107576 communique possesses flash fusing device and laser fixing device.The image processing system of putting down in writing in the TOHKEMY 2008-107576 communique, by the flash of light that produces by the flash fusing device toner is heated, and then each colour toners is shone the laser of the maximum absorption wavelength of each colour toners, heat fixer toner thus by the laser fixing device.According to the image processing system of TOHKEMY 2008-107576 communique, owing to can reduce the addition of the infrared absorbent of toner, so the color reprodubility of photographic fixing image is improved.
But, the toner of putting down in writing in the TOHKEMY 2008-107576 communique, owing to still contain infrared absorbent, so the color reprodubility of photographic fixing image is low.Therefore and the image processing system of putting down in writing in the TOHKEMY 2008-107576 communique needs two kinds of devices of flash fusing device and laser fixing device as fixing device, also has device to constitute to become problem complicated, that cost rises.
Summary of the invention
The present invention finishes for addressing the above problem, and its purpose is, the manufacture method that does not contain infrared absorbent and carry out the light fusing toner of photographic fixing, the two-component developing agent that contains this light fusing toner and light fusing toner by rayed is provided.
The present invention is a kind of smooth fusing toner, and the light of the wavelength in the absorbing wavelength scope that has colorant by irradiation makes in the fixation method of toner photographic fixing on recording medium and uses, and does not contain infrared absorbent, it is characterized in that,
Containing binder resin, colorant and mean grain size is the inner additive that 0.50 μ m is above and 1.40 μ m are following,
Shape coefficient SF-2 is more than 105 and below 120,
The absolute index of refraction n of described inner additive
bAbsolute index of refraction n with described binder resin
aRatio, be relative index of refraction n
b/ n
aBe more than 0.90 and below 0.97.
According to the present invention, toner is for containing binder resin, colorant and inner additive, and do not contain the light fusing toner of infrared absorbent.And the mean grain size of contained inner additive is more than the 0.50 μ m and below the 1.40 μ m in the toner.
When the toner particle irradiates light, the part of light is reflected by surfaces of toner particles, and remainder is injected toner particle inside.At this moment, the incident angle of light is more little, and reflection light quantity is few more, and the light quantity that incides toner particle inside is many more.Toner of the present invention, because shape coefficient SF-2 is more than 105 and below 120, thereby concavo-convex few on the surfaces of toner particles.Therefore, in the total amount of the light of injecting toner particle, the increasing proportion of the light that incident angle is little, reflection light quantity reduces as a result.Thus, toner of the present invention can make a large amount of light inject toner particle inside.
Inject the light of toner particle inside, part is absorbed with the colorant bump, or reflects, sees through with the inner additive bump, does not perhaps see through toner particle with colorant and inner additive bump ground.In the present invention, because the absolute index of refraction n of inner additive
bAbsolute index of refraction n with binder resin
aRatio, be relative index of refraction n
b/ n
aTherefore be below 0.97, with the light of inner additive bump, reflected by inner additive mostly that a part sees through inner additive.Therefore, because there is inner additive in toner particle inside, inject therefore that the light at toner particle inner counter interflection increases in the light of toner particle inside.Thus, the easy and colorant bump of light, the light quantity that therefore is colored the agent absorption increases.
And, in the present invention, because relative index of refraction n
b/ n
aBe more than 0.90, the light of therefore injecting a toner particle can not take place almost all by the situation of this toner particle absorbed inside through reflection, penetrates to this toner particle is outside but light takes place.Therefore, when the toner picture is formed by a plurality of toner layers, see through the light of the toner layer of luminous energy direct irradiation, injected the toner layer that light can not direct irradiation.Thus, in whole toner layers, the colorant of toner particle inside can both absorb the light of q.s.
As above, toner of the present invention increases owing to be colored the light quantity of agent absorption, has therefore absorbed the colorant heating of light, thus, the binder resin heating and melting, thus can photographic fixing on recording medium.Therefore, toner of the present invention does not contain infrared absorbent, can be by rayed photographic fixing on recording medium.In addition, toner of the present invention, because shape coefficient SF-2 is more than 105, so the spatter property height.
In addition, in the present invention, the preferred light fusing toner is cyan toner, magenta toner or Yellow toner.
According to the present invention, the light fusing toner is cyan toner, magenta toner or Yellow toner.Black toner even therefore contain infrared absorbent in the toner, also is difficult to cause the reduction of color reprodubility for present the toner of black by the light in the absorption visible region.But, each color toner is the toner that is used as the primary colors utilization of color mixture by the light of colorant absorption specific absorption wavelength coverage, therefore if contain infrared absorbent in the toner, then this infrared absorbent can absorb the light of color rendering necessary wavelength scope, and color reprodubility reduces.
As mentioned above, toner of the present invention is not for containing the light fusing toner of infrared absorbent, and therefore the reduction of the color reprodubility that caused by infrared absorbent can not take place.Therefore, according to toner of the present invention, can access the image of good image quality.
In addition, in the present invention, preferred above-mentioned inner additive is crosslinked methyl methacrylate resin particle or crosslinked organic siliconresin particle.
According to the present invention, preferred inner additive is crosslinked methyl methacrylate resin particle or crosslinked organic siliconresin particle.By making inner additive is this cross-linked resin particulate, and the inner additive in the toner master batch disperses easily equably, and keeps the shape of inner additive to become easy in the toner master batch.Thus, can further improve the fixation performance of toner integral body.
In addition, the present invention is a kind of two-component developing agent, it is characterized in that, contains above-mentioned light fusing toner and carrier.
According to the present invention, can realize containing the two-component developing agent of above-mentioned smooth fusing toner.Two-component developing agent of the present invention can make at the light of the wavelength in the absorbing wavelength scope that has colorant by irradiation in the fixation method of toner photographic fixing on recording medium and use.
In addition, the present invention is a kind of manufacture method of smooth fusing toner, it is characterized in that, comprising: mixed processes, and with binder resin, colorant and mean grain size be more than the 0.50 μ m and the inner additive below the 1.40 μ m mixes, and obtains potpourri; The melting mixing operation, the potpourri melting mixing that will obtain by described mixed processes obtains the melting mixing thing; Refrigerating work procedure will cool off by the melting mixing thing that described melting mixing operation obtains, and obtains solidfied material; Pulverizing process will be pulverized by the solidfied material that described refrigerating work procedure obtains, and obtain the pigmentary resin particle; With the spheroidising operation, the pigmentary resin particle that obtains by described pulverizing process is carried out spheroidising, so that shape coefficient SF-2 is more than 105 and below 120, and, the absolute index of refraction n of described inner additive
bAbsolute index of refraction n with described binder resin
aRatio, be relative index of refraction n
b/ n
aBe more than 0.90 and below 0.97.
According to the present invention, can make the above-mentioned smooth fusing toner that does not contain infrared absorbent and on recording medium, carry out photographic fixing by rayed.
Purpose of the present invention, characteristic and advantage are by following detailed explanation and accompanying drawing and clearer and more definite.
Description of drawings
Fig. 1 is the process chart that expression utilizes the toner manufacturing process of melting mixing comminuting method.
Fig. 2 is the mode chart of the formation of the device of presentation video formation roughly.
Fig. 3 is a mode chart of roughly representing the formation of developing apparatus.
Fig. 4 is a mode chart of roughly representing the formation of photographic fixing portion.
Embodiment
Below with reference to accompanying drawing preferred implementation of the present invention is elaborated.
1, toner
(1) toner
The toner of present embodiment is the light fusing toner, and it does not contain infrared absorbent, has the light of the wavelength in the absorbing wavelength scope of colorant by irradiation and photographic fixing on recording medium.In addition, infrared absorbent, be meant the infrared absorbent that uses in the existing known smooth fusing toner, for example cyanine compound, polymethine compounds, ammonium compounds, diimmonium compounds, phthalocyanine-like compound, part cyanine compound, benzenethiol metalloid complex compound, mercapto-phenol metalloid complex compound, aromatic diamines metal complex, nickel complex, anthraquinone analog compound, naphthalene phthalocyanine-like compound, indolenine compound etc.
The toner of present embodiment contains binder resin, colorant and inner additive, and shape coefficient SF-2 is more than 105 and below 120.In the following embodiments, toner comprises the toner master batch and makes an addition to the external additive of this toner master batch outward, described toner master batch contains binder resin, colorant and inner additive, and the shape coefficient SF-2 of toner is meant the shape coefficient SF-2 of toner master batch.The shape coefficient SF-2 of toner master batch can followingly measure.
The shape coefficient SF-2 of＜toner master batch 〉
On the surface of toner master batch, form metal film (Au film by the sputter evaporation, thickness 0.5 μ m), thereby form metal film coated particle, use scanning electron microscope (trade name: S-570, Hitachi Co., Ltd's system), under the condition of 1000 times of accelerating potential 5kV, multiplying power, randomly draw 200～300 these metal film coated particles and take pictures.Then, use image analysis software (trade name: A as く ん, the エ of Asahi Chemical Industry Application ジ ニ ア リ Application グ Co., Ltd. system) that the picture data of taking is carried out graphical analysis.The particle analysis parameter of image analysis software " A is as く ん " is as follows.
Little figure is removed area: 100 pixels
Shrink and separate: number of times 1
Little figure: 1
Number of times: 10
Noise is got rid of wave filter: do not have
Shade (shading): do not have
Representation unit as a result: μ m
The maximum length of the particle that use is obtained by graphical analysis (absolute maximum length) MXLNG, girth PERI and graphics area (projected area) AREA, the value that will be calculated by following formula (A), (B) is as shape coefficient SF-1, the shape coefficient SF-2 of toner.
Shape coefficient SF-1={ (MXLNG)
2/ AREA} * 25 * π ... (A)
Shape coefficient SF-2={ (PERI)
2/ AREA} * (25/ π) ... (B)
(among formula (A), (B), π represents circular constant)
Shape coefficient SF-1 is the value of above-mentioned formula (A) expression, is the value of the sphericity (degree of circularity) of expression shape of particle.The value of shape coefficient SF-1 is 100 o'clock, particle be shaped as ball, the value of shape coefficient SF-1 is big more then become more unsetting.In addition, shape coefficient SF-2 is the value of above-mentioned formula (B) expression, is the value of camber of the surface configuration of expression particle.Particle be shaped as ball the time, shape coefficient SF-2 is 100.
When the toner particle irradiates light, the part of light is reflected by surfaces of toner particles, and remainder is injected toner particle inside.At this moment, the incident angle of light is more little, and reflection light quantity is few more, and the light quantity that incides toner particle inside is many more.As mentioned above, the toner of present embodiment, because shape coefficient SF-2 is more than 105 and below 120, so concavo-convex few on the surfaces of toner particles.Therefore, in the total amount of the light of injecting toner particle, the increasing proportion of the light that incident angle is little, reflection light quantity reduces as a result.Thus, the toner of present embodiment can make a large amount of light inject toner particle inside.
The mean grain size of above-mentioned inner additive is more than the 0.50 μ m and below the 1.40 μ m, the absolute index of refraction n of this inner additive
bAbsolute index of refraction n with described binder resin
aRatio, be relative index of refraction n
b/ n
aBe more than 0.90 and below 0.97.Inner additive is dispersed in the binder resin with colorant.
Inject the light of toner particle inside by rayed, be absorbed, or with the inner additive bump and reflect, see through, perhaps do not see through toner particle with colorant and inner additive bump ground with colorant bump and part.In the present embodiment, because the absolute index of refraction n of inner additive
bAbsolute index of refraction n with binder resin
aRatio, be relative index of refraction n
b/ n
aTherefore be below 0.97, with the light of inner additive bump, reflected by inner additive mostly that a part sees through inner additive.Therefore, because there is inner additive in toner particle inside, inject therefore that the light at toner particle inner counter interflection increases in the light of toner particle inside.Thus, the easy and colorant bump of light, the light quantity that therefore is colored the agent absorption increases.
And, in the present embodiment, because relative index of refraction n
b/ n
aBe more than 0.90, the light of therefore injecting a toner particle can not take place almost all by the situation of this toner particle absorbed inside through reflection, penetrates to this toner particle is outside but light takes place.Therefore, when the toner picture is formed by a plurality of toner layers, see through the light of the toner layer of luminous energy direct irradiation, injected the toner layer that light can not direct irradiation.Thus, in whole toner layers, the colorant of toner particle inside can both absorb the light of q.s.
As above, the toner of present embodiment increases owing to be colored the light quantity of agent absorption, has therefore absorbed the colorant heating of light, thus, the binder resin heating and melting, thus can photographic fixing on recording medium.Therefore, the toner of present embodiment does not contain infrared absorbent, can be by rayed photographic fixing on recording medium.
Relative therewith, relative index of refraction n
b/ n
aSurpass at 0.97 o'clock, the reflection of light that inner additive causes becomes and is difficult to take place, thereby is difficult to fully guarantee to be colored the light quantity that agent absorbs.In addition, relative index of refraction n
b/ n
aLess than 0.9 o'clock, the light of toner particle inside was difficult to penetrate from this toner particle is inner, and therefore under the situation that the toner picture is made of a plurality of toner layers, the toner of light in can not the toner layer of direct irradiation becomes and be difficult to fusion fully.
And, even relative index of refraction n
b/ n
aBe more than 0.90 and below 0.97,, can not obtain sufficient fixation performance if the mean grain size of inner additive is not more than the 0.50 μ m and below the 1.40 μ m.The mean grain size of inner additive is during less than 0.50 μ m, and the reflection of light that inner additive causes becomes and is difficult to take place, thereby is difficult to fully guarantee to be colored the light quantity that agent absorbs.In addition, when the mean grain size of inner additive surpasses 1.40 μ m, the light of toner particle inside is difficult to penetrate from this toner particle is inner, and therefore under the situation that the toner picture is made of a plurality of toner layers, the toner of light in can not the toner layer of direct irradiation becomes and be difficult to fusion fully.
The toner of present embodiment, preferable shape coefficient S F-2 is more than 105.By making shape coefficient SF-2 be more than 105, remain in toner on the photosensitive drums after image forms and become and remove from this photosensitive drums easily.That is, be more than 105 by making shape coefficient SF-2, can improve the spatter property of toner.
The toner of present embodiment, preferred inner additive is cross-linked resin particulates such as crosslinked methyl methacrylate resin particle, crosslinked organic siliconresin particle.By using the cross-linked resin particulate as inner additive, the inner additive in the toner master batch disperses easily equably, and keeps the shape of inner additive to become easy in the toner master batch.Thus, can further improve the fixation performance of toner integral body.
The toner of present embodiment is preferably color toners such as cyan toner, magenta toner or Yellow toner.Black toner even therefore contain infrared absorbent in the toner, also is difficult to cause the reduction of color reprodubility for present the toner of black by the light in the absorption visible region.But, each color toner is the toner that is used as the primary colors utilization of color mixture by the light of colorant absorption specific absorption wavelength coverage, therefore if contain infrared absorbent in the toner, then this infrared absorbent can absorb the light of color rendering necessary wavelength scope, and color reprodubility reduces.As mentioned above, the toner of present embodiment is not for containing the light fusing toner of infrared absorbent, and therefore the reduction of the color reprodubility that caused by infrared absorbent can not take place.Therefore, with the toner of present embodiment during, can realize obtaining the color toner of the image of good image quality as color toner.
The toner of present embodiment can be by following raw material for toner, make by following method for preparing toner.
(2) raw material for toner
Raw material for toner comprises binder resin, colorant, inner additive and other adjuvant.
(2-1) binder resin
Binder resin does not have particular restriction, can use the known binder resin that is used for black toner or color toner.As binder resin, for example, can enumerate polyester resin, styrene resins such as polystyrene, cinnamic acrylic ester copolymer resins, polymethylmethacrylate acrylic resins such as (PMMA), polyolefin resins such as tygon, polyurethane, epoxy resin and organic siliconresin.
The absolute index of refraction n of binder resin
a, for example, vibrin is 1.58, and the styrene-propene acid resin is 1.56, and PMMA is 1.49, and organic siliconresin is 1.41.
In order to make absolute index of refraction n
aReduce, binder resin can contain fluorine.For example, as the absolute index of refraction n that reduces vibrin
aThe time the contain fluorine atoms composition, in diol component, can utilize 2, the ethylene oxide adduct of two (4-hydroxyphenyl) HFC-236fa of 2-etc.And, in order to improve the absolute index of refraction n of vibrin
a, for example, can contain dicarboxylic acid composition and have the diol component of bisphenol-A skeleton as copolymer composition with naphthalene skeleton.
The refractive index n of binder resin
a, can measure by known prism-coupled method.For example, use Abbe refractometer NAR-1T SOLID (the ア タ of Co., Ltd. go system), use the D line (589nm) of illuminator, under 20 ℃ mensuration temperature, measure.
(2-2) colorant
As colorant, can enumerate dye well pigment, wherein preferably use pigment.Pigment compares photostability with dyestuff and color emissivity is good, therefore by using pigment, can access the good toner of photostability and color emissivity.
As colorant, for example can enumerate: Yellow toner with colorant, magenta toner with colorant, cyan toner with colorant and black toner with colorant etc.
As Yellow toner, can enumerate organic class pigment such as C.I. pigment yellow 1, C.I. pigment yellow 5, C.I. pigment Yellow 12, C.I. pigment yellow 15, C.I. pigment yellow 17, C.I. pigment yellow 74, C.I. pigment yellow 93, C.I. pigment yellow 180 and C.I. pigment yellow 185 of for example classifying according to color index; Mineral-type such as iron oxide yellow, loess pigment; C.I. Indian yellow 1 dyestuff such as class such as nitro such as grade; C.I. oil-soluble dyes such as solvent yellow 2, C.I. solvent yellow 6, C.I. solvent yellow 14, C.I. solvent yellow 15, C.I. solvent yellow 19 and C.I. solvent yellow 21.
As above-mentioned magenta toner colorant, can enumerate C.I. pigment red 49, C.I. paratonere 57, C.I. pigment red 81, C.I. pigment red 122, C.I. paratonere 184, C.I. paratonere 185, C.I. paratonere 238, C.I. paratonere 269, C.I. solvent red 19, C.I. solvent red 49, C.I. solvent red 52, C.I. alkali red 1:1 0 and the C.I. Red-1 200 5 etc. of for example classifying according to color index.
As the cyan toner colorant, can enumerate the C.I. pigment blue 15 of for example classifying, C.I. pigment blue 16, C.I. solvent blue 55, C.I. solvent blue 70, C.I. directly blue 25 and C.I. directly blue 86 etc. according to color index.
As the black toner colorant, can enumerate for example carbon blacks such as channel black, roller black, disc black, coal gas furnace black, oil furnace black, thermals and acetylene black.
Except that above-mentioned colorant, can also use red pigment, viridine green etc.Colorant can use a kind separately, perhaps also can and with color different more than 2 kinds.In addition, can and use multiple colorant with colour system.
Colorant preferably uses with the form of masterbatch.The masterbatch of colorant for example can be made by the fused mass and the colorant of mixing binder resin.As the binder resin that uses in the masterbatch, can use and the congener resin of the binder resin of toner.The binder resin in the masterbatch and the usage ratio of colorant do not have particular restriction, are being to use colorant more than 30 weight portions and in the scope below 100 weight portions with respect to binder resin 100 weight portions preferably.The particle diameter of masterbatch does not have particular restriction, for example preferably is a granulated into the about 2mm of particle diameter～about 3mm and uses.
The content of colorant is not particularly limited in the toner, and preference is as with respect to binder resin 100 weight portions, and colorant is more than 4 weight portions and in the scope below 20 weight portions.Thus, can suppress by adding the filling effect (filler effect) that colorant causes, and can access and have high-strength toner.Relative therewith, if the content of colorant surpasses 20 weight portions in the toner, then owing to filling effect, the fixation performance of toner might reduce.
(2-3) inner additive
Inner additive is a particulate contained in the toner master batch.Inner additive can be an inorganic particles, also can be organic fine particles.When being inorganic particles, can use for example silicon dioxide microparticle (absolute index of refraction: 1.45) as inner additive.When being organic fine particles, can use resin particle as inner additive.Resin particle is preferably the cross-linked resin particulate.1.49), crosslinked organic siliconresin particle (absolute index of refraction: 1.41) etc. as the cross-linked resin particulate, for example can use crosslinked methyl methacrylate resin particle (absolute index of refraction:.
Inner additive can cooperate binder resin to select, so that the absolute index of refraction n of binder resin
aAbsolute index of refraction n with inner additive
bRatio, be relative index of refraction n
b/ n
aBe more than 0.90 and below 0.97.The absolute index of refraction n of inner additive
b, can measure by known prism-coupled method.For example, use Abbe refractometer NAR-1T SOLID (the ア タ of Co., Ltd. go system), use the D line (589nm) of illuminator, under 20 ℃ mensuration temperature, measure.
(2-4) charge control agent
Toner can contain charge control agent.Charge control agent adds in order to give the preferred charging property of toner.Charge control agent does not have particular restriction, can use the charge control agent of known positive charge control usefulness or negative charge control usefulness.
As the charge control agent of positive charge control usefulness, for example can enumerate: basic-dyeable fibre, quaternary ammonium salt, season
Salt, aminopyrine, pyrimidine compound, multinuclear polyamino compounds, amino silane, aniline black byestuffs and derivant thereof, triphenyl methane derivant, guanidinesalt and amidine salt etc.
As the charge control agent of negative charge control usefulness, for example can enumerate: the metal complex of hydrocarbon black, ス ピ ロ Application Block ラ Star Network oil-soluble dyes such as (Spirone Black), containing metal azo-compound, azo complex compound dyestuff, metal naphthenate, salicylic acid and derivant thereof and slaine (metal is chromium, zinc, zirconium etc.), boron compound, fatty acid soaps, chain alkyl carboxylate, resin acid soaps etc.
The charge control agent of positive charge control usefulness can use a kind separately, or also controls the charge control agent of usefulness with the positive charge more than 2 kinds.Similarly, the charge control agent of negative charge control usefulness can use a kind separately, or also controls the charge control agent of usefulness with the negative charge more than 2 kinds.When using the charge control agent of binder resin and non-compatibility, with respect to binder resin 100 weight portions, preferred non-compatibility charge control agent uses more than 0.5 weight portion and in the scope below 5 weight portions, more preferably uses more than 0.5 weight portion and in the scope below 3 weight portions.Greater than 5 weight portions, then carrier is polluted as if the non-compatibility charge control agent that contains with respect to binder resin 100 weight portions, toner takes place disperse.If not the content of compatibility charge control agent less than 0.5 weight portion, then can not give toner sufficient charging property.
(2-5) external additive
Toner is preferably the toner that the toner master batch has added external additive outward.As external additive,, can preferably use inorganic particles in order to make mobile and the charging property raising.The primary particle size of external additive is preferably 5nm～2 μ m, is preferably 5nm～500nm especially.Specific surface area external additive, that obtained by the BET method is preferably 20m
2/ g～500m
2/ g.
As inorganic particles, for example can enumerate: silicon dioxide, titanium dioxide, aluminium oxide, barium titanate, magnesium titanate, calcium titanate, strontium titanates, zinc paste, tin oxide, silica sand, clay, mica, wollastonite, zeyssatite, chromium oxide, cerium oxide, colcother, antimony trioxide, magnesium oxide, zirconia, barium sulphate, barium carbonate, lime carbonate, silit, silicon nitride etc.
External additive preferably carries out surface treatment by surface conditioning agent.The hydrophobicity of the external additive after the surface treatment improves, and therefore can prevent the flowability under the high humility and the variation of charging property.As preferred surface conditioning agent, for example can enumerate: silane coupling agent, silylating agent, the silane coupling agent with fluorinated alkyl, organic titanate class coupling agent, aluminium are coupling agent, silicone oil, modified silicon oil etc.
(3) method for preparing toner
The manufacture method of toner does not have particular restriction, can use dry type method for making, wet type method for making etc.Below, to utilize the dry type method for making a kind of, be that the manufacturing of the toner of melting mixing comminuting method describes.Fig. 1 is the process chart that expression utilizes the toner manufacturing process of melting mixing comminuting method.Utilize the toner manufacturing process of melting mixing comminuting method, comprising: mixed processes S1, melting mixing operation S2, refrigerating work procedure S3, pulverizing process S4, classification operation S5, spheroidising operation S6 and the outer treatment process S7 that adds.
(3-1) mixed processes S1
In mixed processes S1, binder resin, colorant, inner additive and charge control agent dry type are mixed.Dry type is mixed employed mixer does not have particular restriction, can use known mixer.As mixer, for example can enumerate: Henschel mixer (trade name, Mitsui Mining Co Ltd. BJ Offc's system), ス one パ one ミ キ サ (trade name, the カ ワ タ of Co., Ltd. system), メ カ ノ ミ Le (trade name, field, ridge Jinggong Co., Ltd system) Henschel type mixing arrangement such as, オ Application グ ミ Le (trade name, ホ ソ カ ワ ミ Network ロ Application Co., Ltd. system), Ha イ Block リ ダ イ ゼ one シ ヨ Application シ ス テ system (trade name, Nara Machinery Co., Ltd.'s system), コ ス モ シ ス テ system (trade name, Kawasaki Heavy Industries Ltd.'s system) etc.
(3-2) melting mixing operation S2
In melting mixing operation S2, the potpourri melting mixing that will obtain by mixed processes S1.In melting mixing operation S2, potpourri is more than being heated to the temperature of fusion of binder resin and be lower than in the temperature of temperature of fusion of inner additive, stirs mixing." temperature of fusion of binder resin above and be lower than the temperature of the temperature of fusion of inner additive " is about 80 ℃～about 200 ℃, is preferably about 100 ℃～about 150 ℃.The mixing roll that uses in the melting mixing does not have particular restriction, for example can use: double screw extrusion machine, triple-roller mill, ラ ボ プ ラ ス ト ミ Le general mixing rolls such as (laboplast mill).As concrete mixing roll, for example can use: TEM-100B (trade name, Toshiba Machinery Co., Ltd.'s system), PCM-65/87 (trade name, Co., Ltd.'s pond shellfish system) etc. single screw rod or double screw extrusion machine, ニ one デ Star Network ス (trade name, Mitsui Mining Co Ltd. BJ Offc's system) etc. drive the mixing roll of refining roller (open roll) mode.
(3-3) refrigerating work procedure S3
In refrigerating work procedure S3, will cool off by the melting mixing thing that melting mixing operation S2 obtains, solidify.Cooling can be a natural cooling, also can be the pressure cooling that utilizes cooler.
(3-4) pulverizing process S4
In pulverizing process S4, will pulverize by the solidfied material that refrigerating work procedure S3 obtains.Obtain the pigmentary resin particle by pulverizing solidfied material.The pulverizing of solidfied material can be used shredding machine, suede grinding machine (feather mill) or airslide disintegrating mill etc.These comminutors may be used alone, two or more kinds can also be used in combination.For example, by shredding machine with the solidfied material coarse crushing after, it is broken to carry out micro mist by airslide disintegrating mill, can access the pigmentary resin particle of desired particle diameter thus.
(3-5) classification operation S5
In classification operation S5, the pigmentary resin particle beyond the desired particle diameter in the pigmentary resin particle that will obtain by pulverizing process S4 is removed.In classification operation S5,, use grader to remove ground resin particles for the meal that obtains by pulverizing process S4.As grader, can use rotary grader, for example TSP separation vessel (trade name, ホ ソ カ ワ ミ Network ロ Application Co., Ltd. system) etc.
(3-6) spheroidising operation S6
In spheroidising operation S6,, make being adjusted into more than 100 shape coefficient SF-2 and 120 following toner master batches to carrying out spheroidising by the pigmentary resin particle after the classification operation S5 classification.In spheroidising, can use impact type spheroidization device or hot air type spheroidization device.As the impact type spheroidization device, for example can use: Off ア カ Le テ イ (trade name, ホ ソ カ ワ ミ Network ロ Application Co., Ltd. system), Ha イ Block リ ダ イ ゼ one シ ヨ Application シ ス テ system (trade name, Nara Machinery Co., Ltd.'s system) etc.As the hot air type spheroidization device, for example can use: Biao Mian Gai Quality Machine メ テ オ レ イ Application ボ one (trade name, Japanese ニ ユ one マ チ Star Network Industrial Co., Ltd system) etc.In addition, the pigmentary resin particle by the melting mixing comminuting method generates is generally unsetting before carrying out spheroidising, and shape coefficient SF-1 surpasses 150 mostly, shape coefficient SF-2 surpasses 140.
(3-7) the outer treatment process S7 that adds
Add outside among the treatment process S7, outside the toner master batch that obtains by spheroidising operation S6, add external additive.The outer interpolation of external additive can be used impact grinder or various mixer.As mixer, for example can enumerate: メ カ ノ Off ユ one ジ ヨ Application シ ス テ system (trade name, ホ ソ カ ワ ミ Network ロ Application Co., Ltd. system), サ イ Network ロ ミ Star Network ス (trade name, ホ ソ カ ワ ミ Network ロ Application Co., Ltd. system), Na ノ ア Network チ ベ one タ one (trade name, ホ ソ カ ワ ミ Network ロ Application Co., Ltd. system), Henschel mixer (trade name, Mitsui Mining Co Ltd. BJ Offc's system), メ カ ノ ミ Le (trade name, field, ridge Jinggong Co., Ltd system) etc.
2, developer
The developer of present embodiment contains the toner of present embodiment.The toner of present embodiment can use in monocomponent toner, and can use in two-component developing agent.
(1) monocomponent toner
Monocomponent toner does not contain carrier, and only the toner by present embodiment constitutes.Monocomponent toner is carried by development sleeve, utilizes scraper or hairbrush and frictional electrification is supplied to electrostatic latent image by electrostatic force, makes this latent electrostatic image developing thus.The monocomponent toner of present embodiment can make at the light of the wavelength in the absorbing wavelength scope that has colorant by irradiation in the fixation method of toner photographic fixing on recording medium and use as monocomponent toner.
(2) two-component developing agent
Two-component developing agent contains the toner of present embodiment, and contains known carrier.The two-component developing agent of present embodiment can make at the light of the wavelength in the absorbing wavelength scope that has colorant by irradiation in the fixation method of toner photographic fixing on recording medium and use as two-component developing agent.
As carrier, for example can enumerate: by iron, copper, zinc, nickel, cobalt, manganese, chromium etc. constitute separately or the complex ferrite carrier; The carrier core particle that is made of ferrite by the coating confrontation carries out surface coated resin-coated carrier; Make particle be distributed to resin dispersion type carrier in the resin etc. with magnetic.
Coating material does not have particular restriction, can use known material.As coating material, for example can enumerate: the color lake thing of the metallic compound of teflon, chlorotrifluoroethylene polymkeric substance, Kynoar, organic siliconresin, vibrin, di-tert-butyl salicylic acid, styrene resin, acryl resin, polyacid, polyvinyl butyral, nigrosine, amino acrylates resin, basic-dyeable fibre, basic-dyeable fibre, fine silica powder, alumina powder etc.Coating choosing of fine quality is suitably selected according to toner components.Coat material and can use a kind separately, or and with more than 2 kinds.
The resin that uses in the resin dispersion type carrier does not have particular restriction, for example can use: styrene acrylic resin, vibrin, fluorine resin and phenolics etc.The resin that uses in the resin dispersion type carrier is preferably suitably selected according to toner components.The resin that uses in the resin dispersion type carrier can use a kind separately, or and with more than 2 kinds.
The shape of carrier is preferably sphere or flat.The particle diameter of carrier does not have particular restriction, if consider the high image qualityization of photographic fixing image, then is preferably in the scope of 10 μ m～100 μ m, more preferably in the scope of 20 μ m～50 μ m.
The resistivity of carrier is preferably 10
8More than the Ω cm, more preferably 10
12More than the Ω cm.If the resistivity of carrier is low, electric charge is injected into carrier when then applying bias voltage, and carrier particle might be attached on the photosensitive drums.In addition, if the resistivity of carrier is low, then cause the puncture of bias voltage easily.In addition, " resistivity of carrier " following obtaining: it is 0.50cm that carrier is put into sectional area
2, the bottom surface has in the container of electrode and after rapping, utilize counterweight that the carrier particle in the container of packing into is applied 1kg/cm
2Load, be determined to add between counterweight and the bottom-side electrodes and produce 1000V/cm
2Current value during the voltage of electric field.
The magnetization of carrier (maximal magnetization) is preferably in the scope of 10emu/g～60emu/g, further preferably in the scope of 15emu/g～40emu/g.The magnetization of carrier depends on the magnetic flux density of developer roll, but under the condition of general magnetic flux density, if the magnetization of carrier is lower than 10emu/g, then the binding force of magnetic is inoperative, becomes the reason that carrier disperses.If the magnetization of carrier surpasses 60emu/g, then carrier erect too high.In noncontact was developed, if erecting of carrier is too high, then photosensitive drums and carrier were difficult to keep contactless state.In addition, in contact is developed, if erecting of carrier is too high, then on the toner picture trace appears easily sweeping.
The toner in the two-component developing agent and the usage ratio of carrier do not have particular restriction, can suitably select according to the kind of toner and carrier.For example, use resin-coated carrier (density 5g/cm
2～8g/cm
2) time, as long as prepare in the mode of the toner of the 2 weight %～30 weight %, the preferred 2 weight %～20 weight % that contain this two-component developing agent total amount in the two-component developing agent.In two-component developing agent, toner to the clad ratio of carrier preferably in 40%～80% scope.
3. image processing system
The developer of present embodiment can use in the image processing system 100 of laser photographic fixing formula shown in Figure 2.Fig. 2 is the mode chart of the formation of the device 100 of presentation video formation roughly.Image processing system 100 is the compounding machines that have copy function, printing function and facsimile function simultaneously, according to the image information of being transmitted, forms full color or monochromatic image on recording medium.Image processing system 100 has copy mode (copy mode), printing model and three kinds of printing mode of fax pattern, according to from the operation of not shown operating portion input, from the signal of the presswork of the external unit that uses personal computer, mobile terminal device, information recording medium storage, memory storage etc. etc., select printing mode by not shown control module portion.
Electro-mechanical part 22, developing apparatus 24 and cleaning unit 25 photosensitive drums 21 around along its sense of rotation with above-mentioned arranged in order.Electro-mechanical part 22 is configured in the vertical direction below of developing apparatus 24 and cleaning unit 25.
Electro-mechanical part 22 is to make photosensitive drums 21 surfaces have the device of predetermined polarity and current potential.Electro-mechanical part 22 is arranged on and photosensitive drums 21 position adjacent along the length direction of photosensitive drums 21.Under the situation of the Charging system of contact electrification mode, electro-mechanical part 22 is provided with in the mode that contacts with photosensitive drums 21 surfaces.Under the situation of the Charging system of the charged mode of noncontact, electro-mechanical part 22 is provided with in the mode with photosensitive drums 21 surface isolation.
Electro-mechanical part 22 and developing apparatus 24, cleaning unit 25 etc. together be arranged on photosensitive drums 21 around.Electro-mechanical part 22 is compared with developing apparatus 24, cleaning unit 25 etc., preferably is arranged on apart from the near position of photosensitive drums 21.Thus, can positively prevent the charged bad generation of photosensitive drums 21.
As electro-mechanical part 22, can use brush type Charging system, roll shape Charging system, corona discharge assembly, ion generating apparatus etc.Brush type Charging system and roll shape Charging system are the Charging system of contact electrification mode.The device of use brush, magnetic brush etc. is arranged in the brush type Charging system.Corona discharge assembly and ion generating apparatus are the Charging system of the charged mode of noncontact.In the corona discharge assembly, the device etc. of the sparking electrode of the sparking electrode that uses the electric wire shape, jagged sparking electrode, needle-like is arranged.
Exposing unit 23 disposes as follows: the light from exposing unit 23 penetrates between electro-mechanical part 22 and developing apparatus 24, shines the surface of photosensitive drums 21.Exposing unit 23, by shining respectively and the corresponding laser of the image information of each color, thereby on each surface of photosensitive drums 21b, 21c, 21m, 21y, form the corresponding electrostatic latent image of image information with each color to the photosensitive drums 21b that is in electriferous state, 21c, 21m, 21y surface.In exposing unit 23, can use the laser scan unit (LSU) that for example is provided with laser irradiating part and a plurality of catoptrons.As exposing unit 23, the unit etc. of LED (light emitting diode, Light Emitting Diode) array, liquid crystal shutter and light source that also can use appropriate combination.
Fig. 3 is a mode chart of roughly representing the formation of developing apparatus 24.Developing apparatus 24 comprises developing trough 241 and toner feeding funnel 242.Developing trough 241 portion space is within it accommodated the developer of present embodiment.In developing trough 241, developer roll 243, first conveying screw rod 244 and second conveying screw rod 245 are freely supported in rotation.Developing trough 241 form peristome towards the side of photosensitive drums 21, on the relative position of this peristome and photosensitive drums 21, developer roll 243 is being set.
First conveying screw rod 244 is to arrive developer roll 243 member on every side towards developer roll 243 and with toner supply.Second conveying screw rod 245 is towards first conveying screw rod 244 and will delivers to first conveying screw rod 244 member on every side by the toner that toner feeding funnel 242 newly supplies in the developing trough 241.Toner feeding funnel 242 is provided with in the mode that the not shown toner of the toner that is arranged on its vertical direction bottom replenishes the not shown toner receiving port connection on mouth and the vertical direction top that is arranged on developing trough 241.Toner feeding funnel 242 consumes situation according to toner, will be added in the developing trough 241 by the toner that the not shown toner Cartridge of the vertical direction top that is arranged on developing trough 241 is supplied with.As other embodiment, developing apparatus also can be not use toner feeding funnel 242, and directly toner is added to constituting in the developing trough 241 by toner Cartridge of all kinds.
Cleaning unit 25 is after being transferred to intermediate transfer belt 31 on from photosensitive drums 21 the toner picture, removes the toner that remains in photosensitive drums 21 surfaces, makes the member of the cleaning surfaces of photosensitive drums 21.In cleaning unit 25, can use the container-like member that for example is used to wipe the tabular component of toner off and reclaims the toner of wiping off.
Utilize toner picture formation portion 20,,, thereby form electrostatic latent image by exposing unit 23 irradiations and the corresponding laser of image information to be in the surface of the photosensitive drums 21 of uniform electriferous state owing to electro-mechanical part 22.Supply with toner by the electrostatic latent image of developing apparatus 24 on photosensitive drums 21, form the toner picture thus.This toner looks like to be transferred on the intermediate transfer belt 31 described later.After toner looks like to be transferred on the intermediate transfer belt 31, remove the toner that remains in photosensitive drums 21 surfaces by cleaning unit 25.
Driven roller 32 is can be provided with around the mode of its axis rotation by not shown drive division.Driven roller 32 makes intermediate transfer belt 31 move to the direction rotation of arrow B by its rotation.Driven voller 33 makes intermediate transfer belt 31 produce certain force of strain with can the mode of driven rotation is provided with along with the rotation of driven roller 32, so that intermediate transfer belt 31 is lax.
Intermediate transfer rollers 34 is crimped on the photosensitive drums 21 across intermediate transfer belt 31, and can be provided with around the mode of its axis rotation by not shown drive division.Intermediate transfer rollers 34 is connected with the not shown power supply that adds transfer bias, has toner with photosensitive drums 21 surfaces and looks like to be transferred to function on the intermediate transfer belt 31.
Transfer belt cleaning unit 35 is to be provided with driven voller 33 modes relative and that contact with the toner image carrying face of intermediate transfer belt 31 across intermediate transfer belt 31.Transfer belt cleaning unit 35 is provided with for the toner of removing and reclaim intermediate transfer belt 31 surfaces look like to be transferred on the recording medium at toner after.After toner looked like to be transferred on the recording medium, if toner remains on the intermediate transfer belt 31 with the state that adheres to, then because the rotation of intermediate transfer belt 31 is moved, remaining toner might be attached on the transfer roll 36.If toner is attached on the transfer roll 36, then this toner can continue to pollute the back side of the recording medium of transfer printing.
Utilize transfer printing portion 30, intermediate transfer belt 31 contacts with photosensitive drums 21 and rotates when mobile, add the transfer bias with the charged polarity opposite polarity of the toner on photosensitive drums 21 surfaces on intermediate transfer rollers 34, the toner that forms on the surface with photosensitive drums 21 looks like to be transferred on the intermediate transfer belt 31.The toner picture of each color of forming by photosensitive drums 21y, photosensitive drums 21m, photosensitive drums 21c, photosensitive drums 21b respectively is transferred on the intermediate transfer belt 31 so that this order is overlapping successively, forms full color toner picture thus.Be transferred to the toner picture on the intermediate transfer belt 31, move by the rotation of intermediate transfer belt 31 and be delivered to transfer nip, and be transferred on the recording medium in transfer nip.With transfer printing the recording medium of toner picture be delivered to photographic fixing described later portion 40.
Recording medium supply unit 50 comprises: paper feeding box 51; Pick-up roller 52a, 52b; Conveying roller 53a, 53b; Registration roller 54; With paper feed tray 55.Paper feeding box 51 is arranged on the vertical direction bottom of image processing system 100, is the container-like member at image processing system 100 internal reservoir recording mediums.Paper feed tray 55 be arranged on image processing system 100 outside wall surface, at the box-like frame members of image processing system 100 outside store recording media.As recording medium, have common paper, color photocopying with paper, shoot high projector with sheet material, postcard etc.
Pick-up roller 52a is the recording medium that stores in 1 paper feeding box 51 of each taking-up and delivers to the member of using paper transport path A1.Conveying roller 53a is the pair of rolls shape member that the mode with mutual crimping is provided with, in paper transport path A1 to registration roller 54 conveying recording mediums.Pick-up roller 52b is the recording medium that stores in 1 paper feed tray 55 of each taking-up and delivers to the member of using paper transport path A2.Conveying roller 53b is the pair of rolls shape member that the mode with mutual crimping is provided with, in paper transport path A2 to registration roller 54 conveying recording mediums.
Registration roller 54 is pair of rolls shape members that the mode with mutual crimping is provided with, with the toner of intermediate transfer belt 31 carryings look like to be transported to transfer nip synchronously, will deliver to transfer nip by the recording medium that conveying roller 53a, 53b send here.
Utilize recording medium supply unit 50, with the toner of intermediate transfer belt 31 carrying look like to be transported to transfer nip synchronously, will deliver to transfer nip from the recording medium of paper feeding box 51 or paper feed tray 55, and toner is looked like to be transferred on this recording medium.
Fig. 4 is a mode chart of roughly representing the formation of photographic fixing portion 40.Photographic fixing portion 40 comprises laser fixing device 41 and delivery section 44.Laser fixing device 41 comprises LASER Light Source 42 and polygonal rotating mirror 43.LASER Light Source 42 is members of irradiating laser, is that the mode of 4 kinds of laser of oscillation wavelength constitutes can export respectively with different wavelength.Polygonal rotating mirror 43 reflection is by LASER Light Source 42 emitted laser, from the direction with respect to the toner loading end approximate vertical of recording medium, recording medium carried out scan exposure.Polygonal rotating mirror 43, for example its shape is roughly regular hexahedron, at the uniform velocity rotates along arrow C 1 direction.Laser fixing device 41 partly the toner on recording medium as irradiating laser.
Driven roller 46 is can be provided with around the mode of its axis rotation by not shown drive division.Driven roller 46 makes conveying belt 45 move to the rotation of arrow C 2 directions by its rotation.Driven voller 47 makes conveying belt 45 produce certain force of strain with can the mode of driven rotation is provided with along with the rotation of driven roller 46, so that conveying belt 45 is lax.
Can on the light path between LASER Light Source 42 and the polygonal rotating mirror 43, collimating mirror, cylindrical lens etc. be set.In addition, f θ lens, folding mirror, catoptron etc. can be set between polygonal rotating mirror 43 and conveying belt 45.
The laser of laser fixing device 41 by the unfixing toner that remains on the recording medium is had nothing in common with each other as illumination wavelength can make toner noncontact photographic fixing to this recording medium.Particularly, contained colorant absorbs laser and generates heat in the unfixing toner on the recording medium, toner heating and melting thus, thus photographic fixing is on this recording medium.
From the intensity of the laser of LASER Light Source 42 irradiation, preferably at 1.5W/cm
2More than and 630W/cm
2In the following scope.The intensity of laser is less than 1.5W/cm
2The time, the fusion of the toner that is caused by laser radiation becomes insufficient, so the photographic fixing rate of toner reduces.The intensity of laser is if be higher than 630W/cm
2, then owing to laser radiation, toner or recording medium burn, and cause the photographic fixing rate of toner to reduce thus.
Utilize photographic fixing portion 40, if the recording medium that has carried the unfixing toner picture is transported to delivery section 44 from transfer nip, then at first the Yellow toner in the unfixing toner picture optionally shines laser from Y photographic fixing LASER Light Source.At this moment, the laser from Y photographic fixing LASER Light Source is absorbed by Yellow toner.Thus, Yellow toner heating and melting.Then, the magenta toner in the unfixing toner picture optionally shines the laser from M photographic fixing LASER Light Source.At this moment, the laser from M photographic fixing LASER Light Source is absorbed by magenta toner.Thus, magenta toner heating and melting.
Then, the cyan toner in the unfixing toner picture optionally shines the laser from C photographic fixing LASER Light Source.At this moment, the laser from C photographic fixing LASER Light Source is absorbed by cyan toner.Thus, cyan toner heating and melting.At last, the black toner in the unfixing toner picture optionally shines the laser from B photographic fixing LASER Light Source.At this moment, the laser from B photographic fixing LASER Light Source is absorbed by black toner.Thus, black toner heating and melting.As mentioned above, the whole heating and meltings of unfixing toner picture, so toner as photographic fixing on recording medium, thereby form image.The recording medium of toner after as photographic fixing is delivered to discharge portion 60 by delivery section 44.
Distributing roller 62 is pair of rolls shape members that the mode with mutual crimping is provided with.Distributing roller 62 is discharged the recording medium that is printed on one side after finishing to discharge dish 63 when being printed on one side.Distributing roller 62 is carried the recording medium that is printed on one side after finishing by carry road A3 with paper to registration roller 54 when printed on both sides, the recording medium after again printed on both sides being finished is expelled to discharge dish 63.Discharge dish 63 is arranged on the vertical direction top of image processing system 100, the recording medium after the store images photographic fixing.
Storage part can use memory storage commonly used in this field, can enumerate for example ROM (read-only memory) (ROM), random-access memory (ram), hard disk drive (HDD) etc.External unit can use electric, the electronic equipment that can form or obtain image information and can be electrically connected with image processing system 100, can enumerate for example computing machine, digital camera, television receiver, video recorder, DVD (Digital Versatile Disc) CD writer, HDDVD (High-Definition Digital Versatile Disc) CD writer, Blu-ray Disc CD writer, facsimile unit, mobile terminal device etc.
The operational part taking-up is written into the various data (image forms order, testing result, image information etc.) of storage part and the program of various processing, and carries out various judgements.Control part transmits control signal to each device that is arranged at image processing system 100 according to the result of determination of operational part, moves control.
Control part and operational part comprise the treatment circuit of realizing by the microcomputer that possesses central processing unit (CPU, Central Processing Unit), microprocessor etc.Control module portion comprises this treatment circuit and primary power, and power supply is not only to control module portion but also to being arranged at each device power supply of image processing system 100.
Embodiment
Below, embodiment is specifically described.
1, the assay method of each physics value
(1) the absolute index of refraction n of binder resin
a
The absolute index of refraction n of binder resin
aMeasure by the prism-coupled method.Particularly, use Abbe refractometer NAR-1T SOLID (the ア タ of Co., Ltd. go system), use the D line (589nm) of illuminator, under 20 ℃ mensuration temperature, measure.
(2) glass transition temperature of binder resin (Tg)
Use differential scanning calorimeter (trade name: DSC220, セ イ コ one Electricity Industrial Co., Ltd system),, sample 1g is heated, measure the DSC curve with the programming rate of 10 ℃ of per minutes according to Japanese Industrial Standards (JIS) K7121-1987.The temperature of the intersection point of the straight line that the baseline of gained DSC curve and the high temperature side corresponding endothermic peak of glass transition is extended to low temperature side, the tangent line of drawing with the point of slope maximum for the curve that divides with respect to the rising portions from the peak is to the limit tried to achieve as glass transition temperature (Tg).
(3) softening temperature of binder resin (Tm)
In flow characteristics evaluating apparatus (trade name: flow tester CFT-100C, Shimadzu Scisakusho Ltd's system), set and apply 10kgf/cm
2(9.8 * 10
5Pa) load so that sample 1g extrudes, and heats with the programming rate of 6 ℃ of per minutes, is tried to achieve the temperature when flowing out in the sample from mould of half amount, as softening temperature (Tm) from mould (nozzle diameter 1mm, long 1mm).
(4) the shape coefficient SF-2 of toner master batch
On the surface of toner master batch, form metal film (Au film by the sputter evaporation, thickness 0.5 μ m), thereby form metal film coated particle, use scanning electron microscope (trade name: S-570, Hitachi Co., Ltd's system), under the condition of 1000 times of accelerating potential 5kV, multiplying power, randomly draw 200～300 these metal film coated particles and take pictures.Then, use image analysis software (trade name: A as く ん, the エ of Asahi Chemical Industry Application ジ ニ ア リ Application グ Co., Ltd. system) that the picture data of taking is carried out graphical analysis.The particle analysis parameter of image analysis software " A is as く ん " is as follows.
Little figure is removed area: 100 pixels
Shrink and separate: number of times 1
Little figure: 1
Number of times: 10
Noise is got rid of wave filter: do not have
Shade (shading): do not have
Representation unit as a result: μ m
The girth PERI and graphics area (projected area) AREA of the particle that use obtains by graphical analysis, the value that will be calculated by following formula (B) is as the shape coefficient SF-2 of toner.
Shape coefficient SF-2={ (PERI)
2/ AREA} * (25/ π) ... (B)
(in the formula (B), π represents circular constant)
(5) volume average particle size of toner master batch
In 50ml electrolytic solution (trade name: ISOTON-II, ベ Star Network マ Application コ one Le タ one Co., Ltd.'s system) adds toner master batch 20mg and alkyl ether sulphate sodium 1ml in, utilize ultrasonic disperser (trade name: UH-50, the エ ス エ of Co., Ltd. system テ one system), carry out 3 minutes dispersion treatment, formation determination sample with ultrasonic frequency 20kHz.For this mensuration sample, use particle size distribution device (trade name: Multisizer III, ベ Star Network マ Application コ one Le タ one Co., Ltd.'s system), in aperture 100 μ m, mensuration population is to measure under 50000 conditions of counting, and obtains volume average particle size by the volume particle size distribution of toner master batch.
(6) the absolute index of refraction n of inner additive
b
The absolute index of refraction n of inner additive
bMeasure by the prism-coupled method.Particularly, use Abbe refractometer NAR-1T SOLID (the ア タ of Co., Ltd. go system), use the D line (589nm) of illuminator, under 20 ℃ mensuration temperature, measure.
(7) mean grain size of inner additive
The mean grain size of inner additive, by utilizing リ ア Le サ one Off エ ス PVC ユ one microscope (trade name: VE-9800, the キ of Co., Ltd. one エ Application ス system) is amplified to 20000 times, 100 inner additive particles are measured maximum gauge respectively, maximum gauge is asked arithmetic mean and tried to achieve.
2, embodiment and comparative example
(1) embodiment 1
(1-1) making of toner
Use mixer (trade name: Henschel mixer, Mitsui Mining Co Ltd. BJ Offc's system) with binder resin (vibrin, absolute index of refraction 1.58,60 ℃ of glass transition temperatures, 110 ℃ of softening temperatures) 100 weight portions, inner additive (crosslinked methyl methacrylate resin particle, absolute index of refraction 1.49, mean grain size 0.90 μ m) 4.0 weight portions, colorant (C.I. pigment blue 1 11, Dainippon Ink Chemicals's system) 6.0 weight portions, and charge control agent (alkylated salicylamide acid metal salt, trade name: BONTRON E-84, オ リ エ Application ト KCC system) 2.0 weight portions mixed 10 minutes, use twin-screw to extrude mixing roll (trade name: PCM65, Co., Ltd.'s pond shellfish system) then and carry out melting mixing.
By fluidized bed counter jet mill (trade name: カ ウ Application タ ジ エ Star ト ミ Le AFG, ホ ソ カ ワ ミ Network ロ Application Co., Ltd. system) with the melting mixing thing micro mist of gained broken after, by rotary grader (trade name: TSP セ パ レ one タ, ホ ソ カ ワ ミ Network ロ Application Co., Ltd. system) carries out classification, make the pigmentary resin particle of the particle of volume average particle size 5.5 μ m.Then, utilize the spheroidising of implementing the pigmentary resin particle as the Biao Mian Gai Quality Machine メ テ オ レ イ Application ボ one (trade name, Japanese ニ ユ one マ チ Star Network Industrial Co., Ltd system) of hot air type spheroidization device.In Biao Mian Gai Quality Machine メ テ オ レ イ Application ボ one, making the input amount of crushed material (pigmentary resin particle) is 3.0kg/ hour, the quantity delivered that makes hot blast is per minute 900L, the temperature that makes hot blast is 185 ℃, making the supply pressure of cooling air is 0.15MPa, and making the quantity delivered from the air of air injection reaction nozzle is per minute 230L.In addition, the distance L between cooling air suction inlet and collision member is 2.0cm.The shape coefficient SF-2 of the toner master batch that as above carries out spheroidising and obtain is 112.Then, utilizing Henschel mixer is the hydrophobic silica mixing of 1.0 weight portions with the toner master batch with respect to toner master batch 100 weight portions, obtains the outer toner particle that has added hydrophobic silica.
(1-2) making of two-component developing agent
Use V-Mixer (trade name: V-5, the work of Co., Ltd.'s moral longevity is made), with gained toner and volume average particle size is that the ferrite core carrier of 45 μ m mixed 20 minutes, makes that the concentration of toner reaches 7% in the two-component developing agent, makes the two-component developing agent of embodiment 1.Among the embodiment 1, the shape coefficient SF-2 of toner master batch is 112, the absolute index of refraction n of binder resin
aBe 1.58, the mean grain size of inner additive is 0.90 μ m, the absolute index of refraction n of inner additive
bBe 1.49, relative index of refraction n
b/ n
aBe 1.49/1.58 ≈ 0.94.
(2) embodiment 2
Except in the spheroidising of pigmentary resin particle the temperature of hot blast being changed to 180 ℃, the two-component developing agent of embodiment 2 is made in operation similarly to Example 1.Among the embodiment 2, the shape coefficient SF-2 of toner master batch is 119, the absolute index of refraction n of binder resin
aBe 1.58, the mean grain size of inner additive is 0.90 μ m, the absolute index of refraction n of inner additive
bBe 1.49, relative index of refraction n
b/ n
aBe 1.49/1.58 ≈ 0.94.
(3) embodiment 3
Except in the spheroidising of pigmentary resin particle the temperature of hot blast being changed to 210 ℃, the two-component developing agent of embodiment 3 is made in operation similarly to Example 1.Among the embodiment 3, the shape coefficient SF-2 of toner master batch is 106, the absolute index of refraction n of binder resin
aBe 1.58, the mean grain size of inner additive is 0.90 μ m, the absolute index of refraction n of inner additive
bBe 1.49, relative index of refraction n
b/ n
aBe 1.49/1.58 ≈ 0.94.
(4) embodiment 4
Except the mean grain size of using 3.0 weight portions be the crosslinked methyl methacrylate resin particle of 0.50 μ m as the inner additive, the two-component developing agent of embodiment 4 is made in operation similarly to Example 1.Among the embodiment 4, the shape coefficient SF-2 of toner master batch is 112, the absolute index of refraction n of binder resin
aBe 1.58, the mean grain size of inner additive is 0.50 μ m, the absolute index of refraction n of inner additive
bBe 1.49, relative index of refraction n
b/ n
aBe 1.49/1.58 ≈ 0.94.
(5) embodiment 5
Except the mean grain size of using 3.0 weight portions be the crosslinked methyl methacrylate resin particle of 1.40 μ m as the inner additive, the two-component developing agent of embodiment 5 is made in operation similarly to Example 1.Among the embodiment 5, the shape coefficient SF-2 of toner master batch is 112, the absolute index of refraction n of binder resin
aBe 1.58, the mean grain size of inner additive is 1.40 μ m, the absolute index of refraction n of inner additive
bBe 1.49, relative index of refraction n
b/ n
aBe 1.49/1.58 ≈ 0.94.
(6) embodiment 6
Except the fluorine-containing vibrin (absolute index of refraction 1.54,62 ℃ of glass transition temperatures, 111 ℃ of softening temperatures) that uses 100 weight portions as beyond the binder resin, the two-component developing agent of embodiment 6 is made in operation similarly to Example 1.Among the embodiment 6, the shape coefficient SF-2 of toner master batch is 112, the absolute index of refraction n of binder resin
aBe 1.54, the mean grain size of inner additive is 0.90 μ m, the absolute index of refraction n of inner additive
bBe 1.49, relative index of refraction n
b/ n
aBe 1.49/1.54 ≈ 0.97.
(7) embodiment 7
Except the styrene acrylic resin (absolute index of refraction 1.56 of using 100 weight portions, 61 ℃ of glass transition temperatures, 110 ℃ of softening temperatures) as binder resin and to use the mean grain size of 4.0 weight portions be that 0.90 μ m, absolute index of refraction are that 1.41 crosslinked organic siliconresin particle is as beyond the inner additive, operation similarly to Example 1, the two-component developing agent of making embodiment 7.Among the embodiment 7, the shape coefficient SF-2 of toner master batch is 112, the absolute index of refraction n of binder resin
aBe 1.56, the mean grain size of inner additive is 0.90 μ m, the absolute index of refraction n of inner additive
bBe 1.41, relative index of refraction n
b/ n
aBe 1.41/1.56 ≈ 0.90.
(8) comparative example 1
Except in the spheroidising of pigmentary resin particle the temperature of hot blast being changed to 175 ℃, the two-component developing agent of comparative example 1 is made in operation similarly to Example 1.In the comparative example 1, the shape coefficient SF-2 of toner master batch is 121, the absolute index of refraction n of binder resin
aBe 1.58, the mean grain size of inner additive is 0.90 μ m, the absolute index of refraction n of inner additive
bBe 1.49, relative index of refraction n
b/ n
aBe 1.49/1.58 ≈ 0.94.
(9) comparative example 2
Except in the spheroidising of pigmentary resin particle the temperature of hot blast being changed to 230 ℃, the two-component developing agent of comparative example 2 is made in operation similarly to Example 1.In the comparative example 2, the shape coefficient SF-2 of toner master batch is 104, the absolute index of refraction n of binder resin
aBe 1.58, the mean grain size of inner additive is 0.90 μ m, the absolute index of refraction n of inner additive
bBe 1.49, relative index of refraction n
b/ n
aBe 1.49/1.58 ≈ 0.94.
(10) comparative example 3
Except the mean grain size of using 3.0 weight portions be the crosslinked methyl methacrylate resin particle of 0.40 μ m as the inner additive, the two-component developing agent of comparative example 3 is made in operation similarly to Example 1.In the comparative example 3, the shape coefficient SF-2 of toner master batch is 112, the absolute index of refraction n of binder resin
aBe 1.58, the mean grain size of inner additive is 0.40 μ m, the absolute index of refraction n of inner additive
bBe 1.49, relative index of refraction n
b/ n
aBe 1.49/1.58 ≈ 0.94.
(11) comparative example 4
Except the mean grain size of using 3.0 weight portions be the crosslinked methyl methacrylate resin particle of 1.60 μ m as the inner additive, the two-component developing agent of comparative example 4 is made in operation similarly to Example 1.In the comparative example 4, the shape coefficient SF-2 of toner master batch is 112, the absolute index of refraction n of binder resin
aBe 1.58, the mean grain size of inner additive is 1.60 μ m, the absolute index of refraction n of inner additive
bBe 1.49, relative index of refraction n
b/ n
aBe 1.49/1.58 ≈ 0.94.
(12) comparative example 5
Except the vibrin (absolute index of refraction 1.60 of using 100 weight portions, 60 ℃ of glass transition temperatures, 100 ℃ of softening temperatures) as binder resin and to use the mean grain size of 3.0 weight portions be that 0.90 μ m, absolute index of refraction are that 1.41 crosslinked organic siliconresin particle is as beyond the inner additive, operation similarly to Example 1, the two-component developing agent of making comparative example 5.In the comparative example 5, the shape coefficient SF-2 of toner master batch is 112, the absolute index of refraction n of binder resin
aBe 1.60, the mean grain size of inner additive is 0.90 μ m, the absolute index of refraction n of inner additive
bBe 1.41, relative index of refraction n
b/ n
aBe 1.41/1.60 ≈ 0.88.
(13) comparative example 6
Except the fluorine-containing vibrin (absolute index of refraction 1.52,60 ℃ of glass transition temperatures, 111 ℃ of softening temperatures) that uses 100 weight portions as beyond the binder resin, the two-component developing agent of comparative example 6 is made in operation similarly to Example 1.In the comparative example 6, the shape coefficient SF-2 of toner master batch is 112, the absolute index of refraction n of binder resin
aBe 1.52, the mean grain size of inner additive is 0.90 μ m, the absolute index of refraction n of inner additive
bBe 1.49, relative index of refraction n
b/ n
aBe 1.49/1.52 ≈ 0.98.
3, estimate
(1) evaluation of the fixation performance of toner
Use the two-component developing agent of embodiment and comparative example, the adhesion amount of toner is adjusted to 1.2mg/cm
2(with 2 layers of capsule toners amount quite), the not photographic fixing of making vertical 20cm, horizontal 20cm is image on the spot.With commercially available duplicating machine (trade name: MX-2700, Sharp Corporation) fixing device changes fixing device shown in Figure 4 (Y photographic fixing LASER Light Source: 430nm into, M photographic fixing LASER Light Source: 565nm, C photographic fixing LASER Light Source: 620nm, B photographic fixing LASER Light Source: 780nm, the output of each light source: 30W) use, to the image irradiating laser on the spot of photographic fixing not.In colour fastness test (shake formula Kennedy fastness Try test), use is loaded with the ink-eraser (trade name: the ラ イ オ Application go system ギ ヤ ザ sand that disappears of 1kg load, the ラ イ オ of Co., Ltd. Application thing Service device system), with the speed of 14mm/s reciprocating friction is carried out on the surface of photographic fixing image 3 times.Use reflection of the concentration (trade name: RD-914, マ Network ベ ス corporate system) to measure the optical reflection density (image color) of friction front and back, (D) calculates the photographic fixing rate based on following formula, carries out the evaluation of the fixation performance of toner.
Photographic fixing rate (%)=[(image color after the friction)/(image color before the friction)] * 100 ... (D)
The evaluation criterion of fixation performance is as follows.
◎: fabulous.Photographic fixing rate (%) is more than 85%.
Zero: good.Photographic fixing rate (%) is more than 70% and less than 85%.
*: bad.Photographic fixing rate (%) is less than 70%.
(2) evaluation of the spatter property of toner
Spatter property is following to be estimated: as above form image, after 1 of printing and each stage after printing 5000 (5K) and opening, visual the image that forms is compared the sharpness by confirming image portion and the boundary portion of non-image portion and having or not owing to toner is estimated to the black line that the leakage of the sense of rotation of photosensitive drums forms.
The evaluation criterion of spatter property is as follows.
◎: good.After printing 5K opened, boundary portion was clear, does not find black line.
*: bad.After printing 5K opened, boundary portion was unintelligible, perhaps finds black line.
Just the shape coefficient SF-2 of toner master batch, the absolute index of refraction n of binder resin
a, the mean grain size of inner additive, the absolute index of refraction n of inner additive
b, relative index of refraction n
b/ n
a, photographic fixing rate, the evaluation result of fixation performance and the evaluation result of spatter property be shown in table 1.
Table 1
As shown in Table 1, shape coefficient SF-2 is more than 100 and below 120, and the mean grain size of inner additive is more than the 0.50 μ m and below the 1.40 μ m, and relative index of refraction n
b/ n
aBe more than 0.90 and 0.97 when following, the fixation performance height.And shape coefficient SF-2 is 105 when above, the spatter property height.
The present invention can implement with other variety of way under the situation that does not break away from its spirit or principal character.Therefore, above-mentioned embodiment only is illustration in all respects, and scope of the present invention is not subjected to instructions any qualification in full shown in the scope of asking for protection.And, belong to the scope of asking for protection distortion or the change also all within the scope of the invention.
Claims (5)
1. light fusing toner, the light of the wavelength in the absorbing wavelength scope that has colorant by irradiation make in the fixation method of toner photographic fixing on recording medium and use, and do not contain infrared absorbent, it is characterized in that,
Containing binder resin, colorant and mean grain size is the inner additive that 0.50 μ m is above and 1.40 μ m are following,
Shape coefficient SF-2 is more than 105 and below 120,
The absolute index of refraction n of described inner additive
bAbsolute index of refraction n with described binder resin
aRatio, be relative index of refraction n
b/ n
aBe more than 0.90 and below 0.97.
2. smooth fusing toner as claimed in claim 1 is characterized in that, it is cyan toner, magenta toner or Yellow toner.
3. smooth fusing toner as claimed in claim 1 is characterized in that, described inner additive is crosslinked methyl methacrylate resin particle or crosslinked organic siliconresin particle.
4. a two-component developing agent is characterized in that, contains described smooth fusing toner of claim 1 and carrier.
5. the manufacture method of a light fusing toner is characterized in that,
Comprise:
Mixed processes, with binder resin, colorant and mean grain size be more than the 0.50 μ m and the inner additive below the 1.40 μ m mixes, and obtains potpourri;
The melting mixing operation, the potpourri melting mixing that will obtain by described mixed processes obtains the melting mixing thing;
Refrigerating work procedure will cool off by the melting mixing thing that described melting mixing operation obtains, and obtains solidfied material;
Pulverizing process will be pulverized by the solidfied material that described refrigerating work procedure obtains, and obtain the pigmentary resin particle; With
The spheroidising operation is carried out spheroidising to the pigmentary resin particle that obtains by described pulverizing process, so that shape coefficient SF-2 is more than 105 and below 120,
And, the absolute index of refraction n of described inner additive
bAbsolute index of refraction n with described binder resin
aRatio, be relative index of refraction n
b/ n
aBe more than 0.90 and below 0.97.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010-061692 | 2010-03-17 | ||
| JP2010061692A JP4967041B2 (en) | 2010-03-17 | 2010-03-17 | Photofixing toner, two-component developer, and photofixing toner manufacturing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102193353A true CN102193353A (en) | 2011-09-21 |
Family
ID=44601663
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100707767A Pending CN102193353A (en) | 2010-03-17 | 2011-03-17 | Light fixable toner, two-component developer and method for manufacturing the light fixable toner |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20110229815A1 (en) |
| JP (1) | JP4967041B2 (en) |
| CN (1) | CN102193353A (en) |
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|---|---|---|---|---|
| CN103885303A (en) * | 2014-03-27 | 2014-06-25 | 珠海天威飞马打印耗材有限公司 | Preparation method and device for carbon powder |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4945614B2 (en) * | 2009-09-04 | 2012-06-06 | シャープ株式会社 | Photo-fixing toner and one-component developer and two-component developer containing the photo-fixing toner |
| JP6123685B2 (en) * | 2014-01-09 | 2017-05-10 | 富士ゼロックス株式会社 | Electrostatic image developing toner, electrostatic image developer, toner cartridge, process cartridge, image forming apparatus, and image forming method |
| JP7327959B2 (en) * | 2019-03-15 | 2023-08-16 | キヤノン株式会社 | white toner |
| JP2021165835A (en) | 2020-04-06 | 2021-10-14 | キヤノン株式会社 | Toner and method for manufacturing toner |
| JP7150240B1 (en) | 2021-07-19 | 2022-10-11 | 三笠産業株式会社 | Electrostatic charge image developing toner and method for producing electrostatic charge image developing toner |
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| US20080056769A1 (en) * | 2006-09-04 | 2008-03-06 | Fuji Xerox Co., Ltd. | Electrostatic image developing carrier, electrostatic image developing developer, electrostatic image developing developer cartridge, process cartridge, and image forming apparatus |
| CN101373344A (en) * | 2007-08-24 | 2009-02-25 | 富士施乐株式会社 | Image forming method and image forming apparatus |
| CN101634820A (en) * | 2008-07-23 | 2010-01-27 | 株式会社理光 | Toner, developer, and image forming apparatus |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103885303A (en) * | 2014-03-27 | 2014-06-25 | 珠海天威飞马打印耗材有限公司 | Preparation method and device for carbon powder |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2011197160A (en) | 2011-10-06 |
| US20110229815A1 (en) | 2011-09-22 |
| JP4967041B2 (en) | 2012-07-04 |
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Application publication date: 20110921 |